Animation.html - mozsearch

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This test has a WPT meta file that expects 2 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /custom-elements/reactions/Animation.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<html>

<head>

<title>Custom Elements: CEReactions on Element interface</title>

<meta name="author" title="Ryosuke Niwa" href="mailto:rniwa@webkit.org">

<meta name="assert" content="commitStyles of Animation interface must have CEReactions">

<meta name="help" content="https://dom.spec.whatwg.org/#element">

<meta name="help" content="https://w3c.github.io/DOM-Parsing/">

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<script src="../resources/custom-elements-helpers.js"></script>

<script src="./resources/reactions.js"></script>

</head>

<body>

<div id="log"></div>

<script>

test(function () {

    const element = define_new_custom_element(['style']);

    const instance = document.createElement(element.name);

    document.body.appendChild(instance);

    assert_array_equals(element.takeLog().types(), ['constructed', 'connected']);

    const animation = instance.animate([{'borderColor': 'rgb(0, 0, 255)'}], 1);

    animation.commitStyles();

    const logEntries = element.takeLog();

    assert_array_equals(logEntries.types(), ['attributeChanged']);

    assert_equals(logEntries.last().name, 'style');

    assert_equals(logEntries.last().namespace, null);

}, 'Animation.animate must enqueue an attributeChanged reaction when it adds the observed style attribute');

test(function () {

    const element = define_new_custom_element(['style']);

    const instance = document.createElement(element.name);

    document.body.appendChild(instance);

    let animation = instance.animate([{'borderColor': 'rgb(0, 0, 255)'}], 1);

    animation.commitStyles();

    assert_array_equals(element.takeLog().types(), ['constructed', 'connected', 'attributeChanged']);

    animation = instance.animate([{'borderColor': 'rgb(0, 255, 0)'}]);

    animation.commitStyles();

    const logEntries = element.takeLog();

    assert_array_equals(logEntries.types(), ['attributeChanged']);

    assert_equals(logEntries.last().name, 'style');

    assert_equals(logEntries.last().namespace, null);

}, 'Animation.animate must enqueue an attributeChanged reaction when it mutates the observed style attribute');

test(function () {

    const element = define_new_custom_element([]);

    const instance = document.createElement(element.name);

    document.body.appendChild(instance);

    assert_array_equals(element.takeLog().types(), ['constructed', 'connected']);

    const animation = instance.animate([{'borderColor': 'rgb(0, 0, 255)'}], 1);

    animation.commitStyles();

    assert_array_equals(element.takeLog().types(), []);

}, 'Animation.animate must not enqueue an attributeChanged reaction when it mutates the style attribute but the style attribute is not observed');

</script>

</body>

</html>